Finite Element Analysis and in Vitro Biomechanical Experiment on the Effect of Unilateral Partial Facetectomy Performed by Percutaneous Endoscopy on the Stability of Lumbar Spine
Abstract:Purpose: To investigate the lumbar biomechanical effects of unilateral partial facetectomy (UPF) of different facet joint (FJ) portions under percutaneous endoscopy. Methods: A 3D finite element (FE) model of the lumbar spine and 40 fresh calf spine models were used to simulate UPF under a physiological load performed through 3 commonly used needle insertion points (IPs) : (1) The apex of the superior FJ (as the first IP), (2) The midpoint of the ventral side of the superior FJ (as the second IP), (3) The low… Show more
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